Solid Cap To Fit 25 Litre Wide Neck Wine Fermenter

4" Solid cap to fit wine fermenter Comes with O-Ring seal. Please Note - This cap does NOT fit King Keg Barrels.  Tonys TipsThese Solid Caps are useful for degassing your wine after fermentation allowing vigorous rolling around the floor (The Barrel that is, not you or me!) to produce a perfectly flat liquid. As usual keep a spare, and smear the O ring with Petroleum Jelly from your brewing purpose jar of Vaseline, not the half used jar in the bathroom cabinet!